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jaywcjlove
@ -1360,7 +1360,7 @@
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<p>表达式 <code>[^c]ar</code> 匹配一个后面跟着 <code>ar</code> 的除了<code>c</code>的任意字符。</p>
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</div></div></div><div class="wrap h3body-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="重复次数"><a aria-hidden="true" tabindex="-1" href="#重复次数"><span class="icon icon-link"></span></a>重复次数</h3><div class="wrap-body">
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<!--rehype:wrap-class=row-span-2-->
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</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="-号"><a aria-hidden="true" tabindex="-1" href="#-号"><span class="icon icon-link"></span></a><code>*</code> 号</h4><div class="wrap-body">
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</div></div><div class="h3wrap-body"><h4 id="-号"><a aria-hidden="true" tabindex="-1" href="#-号"><span class="icon icon-link"></span></a><code>*</code> 号</h4>
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@ -1380,7 +1380,7 @@
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<table><thead><tr><th align="left">表达式</th><th>匹配示例</th></tr></thead><tbody><tr><td align="left"><code>[a-z]*</code></td><td>T<code>he</code> <code>car</code> <code>parked</code> <code>in</code> <code>the</code> <code>garage</code> #21.</td></tr><tr><td align="left"><code>\s*cat\s*</code></td><td>The fat <code>cat</code> sat on the con<code>cat</code>enation.</td></tr></tbody></table>
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<p>表达式 <code>[a-z]*</code> 匹配一个行中所有以小写字母开头的字符串。</p>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="-号-1"><a aria-hidden="true" tabindex="-1" href="#-号-1"><span class="icon icon-link"></span></a><code>+</code> 号</h4><div class="wrap-body">
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<h4 id="-号-1"><a aria-hidden="true" tabindex="-1" href="#-号-1"><span class="icon icon-link"></span></a><code>+</code> 号</h4>
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@ -1396,7 +1396,7 @@
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<table><thead><tr><th align="left">表达式</th><th>匹配示例</th></tr></thead><tbody><tr><td align="left"><code>c.+t</code></td><td>The <code>fat cat sat on the mat</code>.</td></tr></tbody></table>
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<p>表达式 <code>c.+t</code> 匹配以首字母c开头以t结尾，中间跟着至少一个字符的字符串。</p>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="-号-2"><a aria-hidden="true" tabindex="-1" href="#-号-2"><span class="icon icon-link"></span></a><code>?</code> 号</h4><div class="wrap-body">
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<h4 id="-号-2"><a aria-hidden="true" tabindex="-1" href="#-号-2"><span class="icon icon-link"></span></a><code>?</code> 号</h4>
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@ -1416,7 +1416,7 @@
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<table><thead><tr><th align="left">表达式</th><th>匹配示例</th></tr></thead><tbody><tr><td align="left"><code>[T]he</code></td><td><code>The</code> car is parked in the garage.</td></tr><tr><td align="left"><code>[T]?he</code></td><td><code>The</code> car is parked in t<code>he</code> garage.</td></tr></tbody></table>
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<p>表达式 <code>[T]?he</code> 匹配字符串 <code>he</code> 和 <code>The</code>。</p>
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</div></div></div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="-号-3"><a aria-hidden="true" tabindex="-1" href="#-号-3"><span class="icon icon-link"></span></a><code>{}</code> 号</h3><div class="wrap-body">
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</div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="-号-3"><a aria-hidden="true" tabindex="-1" href="#-号-3"><span class="icon icon-link"></span></a><code>{}</code> 号</h3><div class="wrap-body">
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@ -1494,7 +1494,7 @@
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</div></div></div><div class="wrap h3body-exist row-span-2"><div class="wrap-header h3wrap"><h3 id="锚点-1"><a aria-hidden="true" tabindex="-1" href="#锚点-1"><span class="icon icon-link"></span></a>锚点</h3><div class="wrap-body">
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<!--rehype:wrap-class=row-span-2-->
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<p>匹配指定开头或结尾的字符串就要使用到锚点。</p>
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</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="-号-符串的开头"><a aria-hidden="true" tabindex="-1" href="#-号-符串的开头"><span class="icon icon-link"></span></a><code>^</code> 号 (符串的开头)</h4><div class="wrap-body">
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</div></div><div class="h3wrap-body"><h4 id="-号-符串的开头"><a aria-hidden="true" tabindex="-1" href="#-号-符串的开头"><span class="icon icon-link"></span></a><code>^</code> 号 (符串的开头)</h4>
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@ -1514,7 +1514,7 @@
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<table class="show-header"><thead><tr><th align="left">表达式</th><th>匹配示例</th></tr></thead><tbody><tr><td align="left"><code>(T|t)he</code></td><td><code>The</code> car is parked in <code>the</code> garage.</td></tr><tr><td align="left"><code>^(T|t)he</code></td><td><code>The</code> car is parked in the garage.</td></tr></tbody></table>
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<!--rehype:className=show-header-->
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="-号-否是最后一个"><a aria-hidden="true" tabindex="-1" href="#-号-否是最后一个"><span class="icon icon-link"></span></a><code>$</code> 号 (否是最后一个)</h4><div class="wrap-body">
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<h4 id="-号-否是最后一个"><a aria-hidden="true" tabindex="-1" href="#-号-否是最后一个"><span class="icon icon-link"></span></a><code>$</code> 号 (否是最后一个)</h4>
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@ -1534,7 +1534,7 @@
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<table class="show-header"><thead><tr><th align="left">表达式</th><th>匹配示例</th></tr></thead><tbody><tr><td align="left"><code>(at\.)</code></td><td>The fat c<code>at.</code> s<code>at.</code> on the m<code>at.</code></td></tr><tr><td align="left"><code>(at\.)$</code></td><td>The fat cat. sat. on the m<code>at.</code></td></tr></tbody></table>
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<!--rehype:className=show-header-->
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</div></div></div></div></div><div class="wrap h3body-not-exist row-span-4"><div class="wrap-header h3wrap"><h3 id="简写字符集"><a aria-hidden="true" tabindex="-1" href="#简写字符集"><span class="icon icon-link"></span></a>简写字符集</h3><div class="wrap-body">
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</div></div><div class="wrap h3body-not-exist row-span-4"><div class="wrap-header h3wrap"><h3 id="简写字符集"><a aria-hidden="true" tabindex="-1" href="#简写字符集"><span class="icon icon-link"></span></a>简写字符集</h3><div class="wrap-body">
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<!--rehype:wrap-class=row-span-4-->
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@ -1757,36 +1757,36 @@
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</span></code></pre>
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</div></div></div><div class="wrap h3body-exist col-span-2 row-span-3"><div class="wrap-header h3wrap"><h3 id="实例"><a aria-hidden="true" tabindex="-1" href="#实例"><span class="icon icon-link"></span></a>实例</h3><div class="wrap-body">
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<!--rehype:wrap-class=col-span-2 row-span-3-->
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</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="research"><a aria-hidden="true" tabindex="-1" href="#research"><span class="icon icon-link"></span></a>re.search()</h4><div class="wrap-body">
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</div></div><div class="h3wrap-body"><h4 id="research"><a aria-hidden="true" tabindex="-1" href="#research"><span class="icon icon-link"></span></a>re.search()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> sentence <span class="token operator">=</span> <span class="token string">'This is a sample string'</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token builtin">bool</span><span class="token punctuation">(</span>re<span class="token punctuation">.</span>search<span class="token punctuation">(</span><span class="token string">r'this'</span><span class="token punctuation">,</span> sentence<span class="token punctuation">,</span> flags<span class="token operator">=</span>re<span class="token punctuation">.</span>I<span class="token punctuation">)</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token boolean">True</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token builtin">bool</span><span class="token punctuation">(</span>re<span class="token punctuation">.</span>search<span class="token punctuation">(</span><span class="token string">r'xyz'</span><span class="token punctuation">,</span> sentence<span class="token punctuation">)</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token boolean">False</span>
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</span></code></pre>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="refindall"><a aria-hidden="true" tabindex="-1" href="#refindall"><span class="icon icon-link"></span></a>re.findall()</h4><div class="wrap-body">
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<h4 id="refindall"><a aria-hidden="true" tabindex="-1" href="#refindall"><span class="icon icon-link"></span></a>re.findall()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> re<span class="token punctuation">.</span>findall<span class="token punctuation">(</span><span class="token string">r'\bs?pare?\b'</span><span class="token punctuation">,</span> <span class="token string">'par spar apparent spare part pare'</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token punctuation">[</span><span class="token string">'par'</span><span class="token punctuation">,</span> <span class="token string">'spar'</span><span class="token punctuation">,</span> <span class="token string">'spare'</span><span class="token punctuation">,</span> <span class="token string">'pare'</span><span class="token punctuation">]</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> re<span class="token punctuation">.</span>findall<span class="token punctuation">(</span><span class="token string">r'\b0*[1-9]\d{2,}\b'</span><span class="token punctuation">,</span> <span class="token string">'0501 035 154 12 26 98234'</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token punctuation">[</span><span class="token string">'0501'</span><span class="token punctuation">,</span> <span class="token string">'154'</span><span class="token punctuation">,</span> <span class="token string">'98234'</span><span class="token punctuation">]</span>
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</span></code></pre>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="refinditer"><a aria-hidden="true" tabindex="-1" href="#refinditer"><span class="icon icon-link"></span></a>re.finditer()</h4><div class="wrap-body">
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<h4 id="refinditer"><a aria-hidden="true" tabindex="-1" href="#refinditer"><span class="icon icon-link"></span></a>re.finditer()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> m_iter <span class="token operator">=</span> re<span class="token punctuation">.</span>finditer<span class="token punctuation">(</span><span class="token string">r'[0-9]+'</span><span class="token punctuation">,</span> <span class="token string">'45 349 651 593 4 204'</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token punctuation">[</span>m<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span> <span class="token keyword">for</span> m <span class="token keyword">in</span> m_iter <span class="token keyword">if</span> <span class="token builtin">int</span><span class="token punctuation">(</span>m<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator"><</span> <span class="token number">350</span><span class="token punctuation">]</span>
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</span><span class="code-line"><span class="token punctuation">[</span><span class="token string">'45'</span><span class="token punctuation">,</span> <span class="token string">'349'</span><span class="token punctuation">,</span> <span class="token string">'4'</span><span class="token punctuation">,</span> <span class="token string">'204'</span><span class="token punctuation">]</span>
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</span></code></pre>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="resplit"><a aria-hidden="true" tabindex="-1" href="#resplit"><span class="icon icon-link"></span></a>re.split()</h4><div class="wrap-body">
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<h4 id="resplit"><a aria-hidden="true" tabindex="-1" href="#resplit"><span class="icon icon-link"></span></a>re.split()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> re<span class="token punctuation">.</span>split<span class="token punctuation">(</span><span class="token string">r'\d+'</span><span class="token punctuation">,</span> <span class="token string">'Sample123string42with777numbers'</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token punctuation">[</span><span class="token string">'Sample'</span><span class="token punctuation">,</span> <span class="token string">'string'</span><span class="token punctuation">,</span> <span class="token string">'with'</span><span class="token punctuation">,</span> <span class="token string">'numbers'</span><span class="token punctuation">]</span>
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</span></code></pre>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="resub"><a aria-hidden="true" tabindex="-1" href="#resub"><span class="icon icon-link"></span></a>re.sub()</h4><div class="wrap-body">
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<h4 id="resub"><a aria-hidden="true" tabindex="-1" href="#resub"><span class="icon icon-link"></span></a>re.sub()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> ip_lines <span class="token operator">=</span> <span class="token string">"catapults\nconcatenate\ncat"</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token keyword">print</span><span class="token punctuation">(</span>re<span class="token punctuation">.</span>sub<span class="token punctuation">(</span><span class="token string">r'^'</span><span class="token punctuation">,</span> <span class="token string">r'* '</span><span class="token punctuation">,</span> ip_lines<span class="token punctuation">,</span> flags<span class="token operator">=</span>re<span class="token punctuation">.</span>M<span class="token punctuation">)</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token operator">*</span> catapults
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</span><span class="code-line"><span class="token operator">*</span> concatenate
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</span><span class="code-line"><span class="token operator">*</span> cat
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</span></code></pre>
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</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="recompile"><a aria-hidden="true" tabindex="-1" href="#recompile"><span class="icon icon-link"></span></a>re.compile()</h4><div class="wrap-body">
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<h4 id="recompile"><a aria-hidden="true" tabindex="-1" href="#recompile"><span class="icon icon-link"></span></a>re.compile()</h4>
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<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> pet <span class="token operator">=</span> re<span class="token punctuation">.</span><span class="token builtin">compile</span><span class="token punctuation">(</span><span class="token string">r'dog'</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token builtin">type</span><span class="token punctuation">(</span>pet<span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token operator"><</span><span class="token keyword">class</span> <span class="token string">'_sre.SRE_Pattern'</span><span class="token operator">></span>
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@ -1795,7 +1795,7 @@
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</span><span class="code-line"><span class="token operator">>></span><span class="token operator">></span> <span class="token builtin">bool</span><span class="token punctuation">(</span>pet<span class="token punctuation">.</span>search<span class="token punctuation">(</span><span class="token string">'A cat crossed their path'</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
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</span><span class="code-line"><span class="token boolean">False</span>
|
||||
</span></code></pre>
|
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</div></div></div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="函数"><a aria-hidden="true" tabindex="-1" href="#函数"><span class="icon icon-link"></span></a>函数</h3><div class="wrap-body">
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</div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="函数"><a aria-hidden="true" tabindex="-1" href="#函数"><span class="icon icon-link"></span></a>函数</h3><div class="wrap-body">
|
||||
|
||||
|
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@ -1879,7 +1879,7 @@
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</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="javascript-中的正则表达式"><a aria-hidden="true" tabindex="-1" href="#javascript-中的正则表达式"><span class="icon icon-link"></span></a>JavaScript 中的正则表达式</h2><div class="wrap-body">
|
||||
</div></div><div class="h2wrap-body"><div class="wrap h3body-exist row-span-4"><div class="wrap-header h3wrap"><h3 id="regexp"><a aria-hidden="true" tabindex="-1" href="#regexp"><span class="icon icon-link"></span></a>RegExp</h3><div class="wrap-body">
|
||||
<!--rehype:wrap-class=row-span-4-->
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="属性"><a aria-hidden="true" tabindex="-1" href="#属性"><span class="icon icon-link"></span></a>属性</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="属性"><a aria-hidden="true" tabindex="-1" href="#属性"><span class="icon icon-link"></span></a>属性</h4>
|
||||
|
||||
|
||||
|
||||
@ -1930,7 +1930,7 @@
|
||||
|
||||
|
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<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>dotAll</code></td><td align="left">是否使用了 <code>s</code> 修饰符</td></tr><tr><td align="left"><code>flags</code></td><td align="left">返回标志的字符串</td></tr><tr><td align="left"><code>global</code></td><td align="left">是否使用了 <code>g</code> (全部)修饰符</td></tr><tr><td align="left"><code>hasIndices</code></td><td align="left">是否使用了 <code>d</code> 修饰符</td></tr><tr><td align="left"><code>ignoreCase</code></td><td align="left">匹配文本的时候是否忽略大小写 <code>i</code></td></tr><tr><td align="left"><code>multiline</code></td><td align="left">是否进行多行搜索 <code>m</code></td></tr><tr><td align="left"><code>lastIndex</code></td><td align="left">该索引表示从哪里开始下一个匹配</td></tr><tr><td align="left"><code>source</code></td><td align="left">正则表达式的文本</td></tr><tr><td align="left"><code>sticky</code></td><td align="left">搜索是否是 sticky</td></tr><tr><td align="left"><code>unicode</code></td><td align="left">Unicode 功能是否开启</td></tr></tbody></table>
|
||||
</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="方法"><a aria-hidden="true" tabindex="-1" href="#方法"><span class="icon icon-link"></span></a>方法</h4><div class="wrap-body">
|
||||
<h4 id="方法"><a aria-hidden="true" tabindex="-1" href="#方法"><span class="icon icon-link"></span></a>方法</h4>
|
||||
|
||||
|
||||
|
||||
@ -1977,7 +1977,7 @@
|
||||
|
||||
|
||||
<table><thead><tr><th align="left">:-</th><th align="left">:-</th></tr></thead><tbody><tr><td align="left"><code>match()</code></td><td align="left">获取匹配结果</td></tr><tr><td align="left"><code>matchAll()</code></td><td align="left">所有匹配项</td></tr><tr><td align="left"><code>replace()</code></td><td align="left">替换所有符合正则模式的匹配项</td></tr><tr><td align="left"><code>search()</code></td><td align="left">搜索以取得匹配正则模式的项</td></tr><tr><td align="left"><code>split()</code></td><td align="left">切割字符串返回字符串数组</td></tr><tr><td align="left"><del><code>compile()</code></del></td><td align="left">（重新）编译正则表达式</td></tr><tr><td align="left"><code>exec()</code></td><td align="left">指定字符串中执行一个搜索匹配</td></tr><tr><td align="left"><code>test()</code></td><td align="left">正则表达式与指定的字符串是否匹配</td></tr><tr><td align="left"><code>toString()</code></td><td align="left">返回该正则表达式的字符串</td></tr></tbody></table>
|
||||
</div></div></div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="test"><a aria-hidden="true" tabindex="-1" href="#test"><span class="icon icon-link"></span></a>test()</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="test"><a aria-hidden="true" tabindex="-1" href="#test"><span class="icon icon-link"></span></a>test()</h3><div class="wrap-body">
|
||||
<pre class="language-javascript"><code class="language-javascript code-highlight"><span class="code-line"><span class="token keyword">let</span> textA <span class="token operator">=</span> <span class="token string">'I like APPles very much'</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token keyword">let</span> textB <span class="token operator">=</span> <span class="token string">'I like APPles'</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token keyword">let</span> regex <span class="token operator">=</span> <span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">apples<span class="token anchor function">$</span></span><span class="token regex-delimiter">/</span><span class="token regex-flags">i</span></span>
|
||||
@ -2136,21 +2136,21 @@
|
||||
</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="java-中的正则表达式"><a aria-hidden="true" tabindex="-1" href="#java-中的正则表达式"><span class="icon icon-link"></span></a>Java 中的正则表达式</h2><div class="wrap-body">
|
||||
</div></div><div class="h2wrap-body"><div class="wrap h3body-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="风格"><a aria-hidden="true" tabindex="-1" href="#风格"><span class="icon icon-link"></span></a>风格</h3><div class="wrap-body">
|
||||
<!--rehype:wrap-class=col-span-2-->
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="第一种方式"><a aria-hidden="true" tabindex="-1" href="#第一种方式"><span class="icon icon-link"></span></a>第一种方式</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="第一种方式"><a aria-hidden="true" tabindex="-1" href="#第一种方式"><span class="icon icon-link"></span></a>第一种方式</h4>
|
||||
<pre class="language-java"><code class="language-java code-highlight"><span class="code-line"><span class="token class-name">Pattern</span> p <span class="token operator">=</span> <span class="token class-name">Pattern</span><span class="token punctuation">.</span><span class="token function">compile</span><span class="token punctuation">(</span><span class="token string">".s"</span><span class="token punctuation">,</span> <span class="token class-name">Pattern</span><span class="token punctuation">.</span><span class="token constant">CASE_INSENSITIVE</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token class-name">Matcher</span> m <span class="token operator">=</span> p<span class="token punctuation">.</span><span class="token function">matcher</span><span class="token punctuation">(</span><span class="token string">"aS"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token keyword">boolean</span> s1 <span class="token operator">=</span> m<span class="token punctuation">.</span><span class="token function">matches</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>s1<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// Outputs: true</span>
|
||||
</span></code></pre>
|
||||
</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="第二种方式"><a aria-hidden="true" tabindex="-1" href="#第二种方式"><span class="icon icon-link"></span></a>第二种方式</h4><div class="wrap-body">
|
||||
<h4 id="第二种方式"><a aria-hidden="true" tabindex="-1" href="#第二种方式"><span class="icon icon-link"></span></a>第二种方式</h4>
|
||||
<pre class="language-java"><code class="language-java code-highlight"><span class="code-line"><span class="token keyword">boolean</span> s2 <span class="token operator">=</span> <span class="token class-name">Pattern</span><span class="token punctuation">.</span><span class="token function">compile</span><span class="token punctuation">(</span><span class="token string">"[0-9]+"</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">matcher</span><span class="token punctuation">(</span><span class="token string">"123"</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">matches</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>s2<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// Outputs: true</span>
|
||||
</span></code></pre>
|
||||
</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="第三种方式"><a aria-hidden="true" tabindex="-1" href="#第三种方式"><span class="icon icon-link"></span></a>第三种方式</h4><div class="wrap-body">
|
||||
<h4 id="第三种方式"><a aria-hidden="true" tabindex="-1" href="#第三种方式"><span class="icon icon-link"></span></a>第三种方式</h4>
|
||||
<pre class="language-java"><code class="language-java code-highlight"><span class="code-line"><span class="token keyword">boolean</span> s3 <span class="token operator">=</span> <span class="token class-name">Pattern</span><span class="token punctuation">.</span><span class="token function">matches</span><span class="token punctuation">(</span><span class="token string">".s"</span><span class="token punctuation">,</span> <span class="token string">"XXXX"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>s3<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// Outputs: false</span>
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="模式字段"><a aria-hidden="true" tabindex="-1" href="#模式字段"><span class="icon icon-link"></span></a>模式字段</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="模式字段"><a aria-hidden="true" tabindex="-1" href="#模式字段"><span class="icon icon-link"></span></a>模式字段</h3><div class="wrap-body">
|
||||
|
||||
|
||||
|
||||
@ -2190,14 +2190,14 @@
|
||||
|
||||
<table><thead><tr><th align="left">:-</th><th>-</th></tr></thead><tbody><tr><td align="left"><code>CANON_EQ</code></td><td>规范等价</td></tr><tr><td align="left"><code>CASE_INSENSITIVE</code></td><td>不区分大小写的匹配</td></tr><tr><td align="left"><code>COMMENTS</code></td><td>允许空格和注释</td></tr><tr><td align="left"><code>DOTALL</code></td><td>圆点模式</td></tr><tr><td align="left"><code>MULTILINE</code></td><td>多行模式</td></tr><tr><td align="left"><code>UNICODE_CASE</code></td><td>Unicode 感知大小写折叠</td></tr><tr><td align="left"><code>UNIX_LINES</code></td><td>Unix 行模式</td></tr></tbody></table>
|
||||
</div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="方法-1"><a aria-hidden="true" tabindex="-1" href="#方法-1"><span class="icon icon-link"></span></a>方法</h3><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="pattern"><a aria-hidden="true" tabindex="-1" href="#pattern"><span class="icon icon-link"></span></a>Pattern</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="pattern"><a aria-hidden="true" tabindex="-1" href="#pattern"><span class="icon icon-link"></span></a>Pattern</h4>
|
||||
<ul>
|
||||
<li>模式编译 compile(字符串正则表达式 [,int flags])</li>
|
||||
<li>布尔匹配 matches([字符串正则表达式,] CharSequence 输入)</li>
|
||||
<li>String[] 拆分 split(字符串正则表达式 [,int 限制])</li>
|
||||
<li>字符串引用 quote(字符串 s)</li>
|
||||
</ul>
|
||||
</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="匹配器"><a aria-hidden="true" tabindex="-1" href="#匹配器"><span class="icon icon-link"></span></a>匹配器</h4><div class="wrap-body">
|
||||
<h4 id="匹配器"><a aria-hidden="true" tabindex="-1" href="#匹配器"><span class="icon icon-link"></span></a>匹配器</h4>
|
||||
<ul>
|
||||
<li>int start([int group | 字符串名称])</li>
|
||||
<li>int end([int group | 字符串名称])</li>
|
||||
@ -2205,14 +2205,14 @@
|
||||
<li>字符 group([int 组 | 字符串名称])</li>
|
||||
<li>匹配器重置 reset()</li>
|
||||
</ul>
|
||||
</div></div></div><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="string"><a aria-hidden="true" tabindex="-1" href="#string"><span class="icon icon-link"></span></a>String</h4><div class="wrap-body">
|
||||
<h4 id="string"><a aria-hidden="true" tabindex="-1" href="#string"><span class="icon icon-link"></span></a>String</h4>
|
||||
<ul>
|
||||
<li>boolean matches(String regex)</li>
|
||||
<li>String replaceAll(String regex, 字符串替换)</li>
|
||||
<li>String[] split(String regex[, int limit])</li>
|
||||
</ul>
|
||||
<p>还有更多方法...</p>
|
||||
</div></div></div></div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="例子"><a aria-hidden="true" tabindex="-1" href="#例子"><span class="icon icon-link"></span></a>例子</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="例子"><a aria-hidden="true" tabindex="-1" href="#例子"><span class="icon icon-link"></span></a>例子</h3><div class="wrap-body">
|
||||
<!--rehype:wrap-class=col-span-2-->
|
||||
<p>替换句子：</p>
|
||||
<pre class="language-java"><code class="language-java code-highlight"><span class="code-line"><span class="token class-name">String</span> regex <span class="token operator">=</span> <span class="token string">"[A-Z\n]{5}$"</span><span class="token punctuation">;</span>
|
||||
@ -2270,7 +2270,7 @@
|
||||
</div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp-1"><a aria-hidden="true" tabindex="-1" href="#regexp-1"><span class="icon icon-link"></span></a>REGEXP</h3><div class="wrap-body">
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">expr <span class="token operator">REGEXP</span> pat
|
||||
</span></code></pre>
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="examples"><a aria-hidden="true" tabindex="-1" href="#examples"><span class="icon icon-link"></span></a>Examples</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="examples"><a aria-hidden="true" tabindex="-1" href="#examples"><span class="icon icon-link"></span></a>Examples</h4>
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> <span class="token string">'abc'</span> <span class="token operator">REGEXP</span> <span class="token string">'^[a-d]'</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token number">1</span>
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> name <span class="token keyword">FROM</span> cities <span class="token keyword">WHERE</span> name <span class="token operator">REGEXP</span> <span class="token string">'^A'</span><span class="token punctuation">;</span>
|
||||
@ -2279,28 +2279,28 @@
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> <span class="token string">'a'</span> <span class="token operator">REGEXP</span> <span class="token string">'A'</span><span class="token punctuation">,</span> <span class="token string">'a'</span> <span class="token operator">REGEXP</span> <span class="token keyword">BINARY</span> <span class="token string">'A'</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token number">1</span> <span class="token number">0</span>
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_replace"><a aria-hidden="true" tabindex="-1" href="#regexp_replace"><span class="icon icon-link"></span></a>REGEXP_REPLACE</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_replace"><a aria-hidden="true" tabindex="-1" href="#regexp_replace"><span class="icon icon-link"></span></a>REGEXP_REPLACE</h3><div class="wrap-body">
|
||||
<pre><code class="code-highlight"><span class="code-line">REGEXP_REPLACE(expr, pat, repl[, pos[, occurrence[, match_type]]])
|
||||
</span></code></pre>
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="例子-1"><a aria-hidden="true" tabindex="-1" href="#例子-1"><span class="icon icon-link"></span></a>例子</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="例子-1"><a aria-hidden="true" tabindex="-1" href="#例子-1"><span class="icon icon-link"></span></a>例子</h4>
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> REGEXP_REPLACE<span class="token punctuation">(</span><span class="token string">'a b c'</span><span class="token punctuation">,</span> <span class="token string">'b'</span><span class="token punctuation">,</span> <span class="token string">'X'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line">a X c
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> REGEXP_REPLACE<span class="token punctuation">(</span><span class="token string">'abc ghi'</span><span class="token punctuation">,</span> <span class="token string">'[a-z]+'</span><span class="token punctuation">,</span> <span class="token string">'X'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line">abc X
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_substr"><a aria-hidden="true" tabindex="-1" href="#regexp_substr"><span class="icon icon-link"></span></a>REGEXP_SUBSTR</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_substr"><a aria-hidden="true" tabindex="-1" href="#regexp_substr"><span class="icon icon-link"></span></a>REGEXP_SUBSTR</h3><div class="wrap-body">
|
||||
<pre><code class="code-highlight"><span class="code-line">REGEXP_SUBSTR(expr, pat[, pos[, occurrence[, match_type]]])
|
||||
</span></code></pre>
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="例子-2"><a aria-hidden="true" tabindex="-1" href="#例子-2"><span class="icon icon-link"></span></a>例子</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="例子-2"><a aria-hidden="true" tabindex="-1" href="#例子-2"><span class="icon icon-link"></span></a>例子</h4>
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> REGEXP_SUBSTR<span class="token punctuation">(</span><span class="token string">'abc def ghi'</span><span class="token punctuation">,</span> <span class="token string">'[a-z]+'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line">abc
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> REGEXP_SUBSTR<span class="token punctuation">(</span><span class="token string">'abc def ghi'</span><span class="token punctuation">,</span> <span class="token string">'[a-z]+'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line">ghi
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_like"><a aria-hidden="true" tabindex="-1" href="#regexp_like"><span class="icon icon-link"></span></a>REGEXP_LIKE</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_like"><a aria-hidden="true" tabindex="-1" href="#regexp_like"><span class="icon icon-link"></span></a>REGEXP_LIKE</h3><div class="wrap-body">
|
||||
<pre><code class="code-highlight"><span class="code-line">REGEXP_LIKE(expr, pat[, match_type])
|
||||
</span></code></pre>
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="例子-3"><a aria-hidden="true" tabindex="-1" href="#例子-3"><span class="icon icon-link"></span></a>例子</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="例子-3"><a aria-hidden="true" tabindex="-1" href="#例子-3"><span class="icon icon-link"></span></a>例子</h4>
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_like<span class="token punctuation">(</span><span class="token string">'aba'</span><span class="token punctuation">,</span> <span class="token string">'b+'</span><span class="token punctuation">)</span>
|
||||
</span><span class="code-line"><span class="token number">1</span>
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_like<span class="token punctuation">(</span><span class="token string">'aba'</span><span class="token punctuation">,</span> <span class="token string">'b{2}'</span><span class="token punctuation">)</span>
|
||||
@ -2312,10 +2312,10 @@
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_like<span class="token punctuation">(</span><span class="token string">'a\nb\nc'</span><span class="token punctuation">,</span> <span class="token string">'^b$'</span><span class="token punctuation">,</span> <span class="token string">'m'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token number">1</span>
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_instr"><a aria-hidden="true" tabindex="-1" href="#regexp_instr"><span class="icon icon-link"></span></a>REGEXP_INSTR</h3><div class="wrap-body">
|
||||
</div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="regexp_instr"><a aria-hidden="true" tabindex="-1" href="#regexp_instr"><span class="icon icon-link"></span></a>REGEXP_INSTR</h3><div class="wrap-body">
|
||||
<pre><code class="language-{.wrap} code-highlight"><span class="code-line">REGEXP_INSTR(expr, pat[, pos[, occurrence[, return_option[, match_type]]]])
|
||||
</span></code></pre>
|
||||
</div></div><div class="h3wrap-body"><div class="wrap h4body-not-exist"><div class="wrap-header h4wrap"><h4 id="例子-4"><a aria-hidden="true" tabindex="-1" href="#例子-4"><span class="icon icon-link"></span></a>例子</h4><div class="wrap-body">
|
||||
</div></div><div class="h3wrap-body"><h4 id="例子-4"><a aria-hidden="true" tabindex="-1" href="#例子-4"><span class="icon icon-link"></span></a>例子</h4>
|
||||
<pre class="language-sql"><code class="language-sql code-highlight"><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_instr<span class="token punctuation">(</span><span class="token string">'aa aaa aaaa'</span><span class="token punctuation">,</span> <span class="token string">'a{3}'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token number">2</span>
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_instr<span class="token punctuation">(</span><span class="token string">'abba'</span><span class="token punctuation">,</span> <span class="token string">'b{2}'</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
@ -2325,7 +2325,7 @@
|
||||
</span><span class="code-line">mysql<span class="token operator">></span> <span class="token keyword">SELECT</span> regexp_instr<span class="token punctuation">(</span><span class="token string">'abbabba'</span><span class="token punctuation">,</span> <span class="token string">'b{2}'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||||
</span><span class="code-line"><span class="token number">7</span>
|
||||
</span></code></pre>
|
||||
</div></div></div></div></div></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="也可以看看"><a aria-hidden="true" tabindex="-1" href="#也可以看看"><span class="icon icon-link"></span></a>也可以看看</h2><div class="wrap-body">
|
||||
</div></div></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="也可以看看"><a aria-hidden="true" tabindex="-1" href="#也可以看看"><span class="icon icon-link"></span></a>也可以看看</h2><div class="wrap-body">
|
||||
<ul>
|
||||
<li><a href="https://github.com/ziishaned/learn-regex/blob/master/translations/README-cn.md">轻松学习 Regex</a> <em>(github.com)</em></li>
|
||||
<li><a href="https://jaywcjlove.github.io/regexp-example">正则表达式实例搜集</a> <em>(jaywcjlove.github.io)</em></li>
|
||||
|
||||
Reference in New Issue
Block a user